What Should I Do If the 4G Indicator Light Keeps Blinking or Is Off?

This usually relates to signal strength or service status. Please follow these steps:
4G Light Flashing (Signal Unstable)
1.Check the 4G signal strength at your location using your phone
2.If the phone shows full signal but the device still blinks, restart the device and check again
3.If the issue persists, please contact customer support